CN211063780U

CN211063780U - Loudspeaker

Info

Publication number: CN211063780U
Application number: CN201921868891.7U
Authority: CN
Inventors: 许伟生
Original assignee: Dongguan Fuxin Electronics Co ltd
Current assignee: Dongguan Fuxin Electronics Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-21
Anticipated expiration: 2029-11-01

Abstract

The utility model provides a loudspeaker, including the loudspeaker, the loudspeaker includes the sleeve, the inboard bottom of sleeve is fixed with PCB, the PCB upside is fixed with T iron, T iron upside cover is equipped with magnet, the magnet upside is fixed with china department, china department with be equipped with the voice coil loudspeaker voice coil between the T iron, china department upside is fixed with the diaphragm, the voice coil loudspeaker voice coil is fixed the diaphragm lower extreme, T iron includes the plectane and fixes the cylinder portion of plectane middle part upper end, be equipped with a accent hole on the plectane, cylinder portion with form a voice coil loudspeaker voice coil active area between the magnet, the accent hole is located voice coil loudspeaker voice coil active area below. The utility model discloses a negative pressure problem that appears when the earphone can be solved to the speaker, and tone quality is guaranteed.

Description

Loudspeaker

Technical Field

The utility model relates to a loudspeaker field, concretely relates to speaker.

Background

The loudspeaker is also called a loudspeaker, is a very common electroacoustic transducer, can convert an electric signal into an acoustic signal, and has great influence on the tone quality due to the good and bad performance of the loudspeaker. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.

The sound production principle of the loudspeaker is as follows: when voice frequency current is introduced into the voice coil of the loudspeaker, the voice coil generates an alternating magnetic field under the action of the current, and the permanent magnet also generates a constant magnetic field with unchanged size and direction. Because the size and the direction of the magnetic field generated by the voice coil are continuously changed along with the change of the audio current, the interaction of the two magnetic fields enables the voice coil to move in a direction vertical to the current direction in the voice coil, and the voice coil is connected with the vibrating membrane so as to drive the vibrating membrane to vibrate, and the vibrating membrane vibrates to cause the vibration of air to make sound.

The main structure of the earphone is a loudspeaker, and in the structure of the in-ear earphone, as shown in fig. 1, the traditional T-iron 10 is provided with a hole in the middle, and the air pressure can cause the tympanic membrane on the membrane to sag when the in-ear earphone is inserted into the ear, which affects the normal operation of the tympanic membrane and is urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a speaker can solve the negative pressure problem that appears when the earphone wears, and tone quality obtains guaranteeing.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a loudspeaker, includes the speaker, the speaker includes the sleeve, sleeve inboard bottom is fixed with PCB, the PCB upside is fixed with T iron, T iron upside cover is equipped with magnet, the magnet upside is fixed with the china department, the china department with be equipped with the voice coil loudspeaker voice coil between the T iron, the china department upside is fixed with the diaphragm, the voice coil loudspeaker voice coil is fixed the diaphragm lower extreme, T iron includes the plectane and fixes the cylinder portion of plectane middle part upper end, be equipped with a accent hole on the plectane, cylinder portion with form a voice coil loudspeaker voice coil active area between the magnet, the accent hole is located voice coil loudspeaker voice coil active area below.

Specifically, a rubber shell tuning net is further fixed to the lower end of the circular plate and located right below the tuning hole.

Specifically, still be equipped with on the PCB with the groove of stepping down of rubber shell tuning net shape assorted.

Specifically, the diaphragm comprises an outer frame fixedly connected with the washer, an annular convex film connected to the front end face of the outer frame, and a drum membrane fixed to the middle of the annular convex film, wherein a plurality of concave strips are further arranged on the annular convex film.

Specifically, all the concave strips are distributed on the annular convex membrane in a fan-blade shape.

The utility model has the advantages that:

the utility model discloses a loudspeaker sets up the tuning hole on the plectane of T iron, and the tuning hole can let the air flow in and flow out from the loudspeaker, and the atmospheric pressure makes the tympanic membrane on the diaphragm appear sunken problem when not only having prevented that the earphone from filling in into the ear, can also improve the distortion simultaneously, creates better tone quality and heavy bass effect to the tuning effect of shell tuning net is glued in the cooperation, with to more accurate regulation sound.

Drawings

Fig. 1 is a schematic structural view of a conventional T-iron.

Fig. 2 is a first perspective view of a speaker according to the present invention.

Fig. 3 is a second perspective view of the speaker of the present invention.

Fig. 4 is a front view of a speaker according to the present invention.

Fig. 5 is a cross-sectional view taken along the plane a-a in fig. 4.

Fig. 6 is a schematic structural view of the tuning net for middle T iron and rubber shell of the present invention.

Fig. 7 is a schematic structural diagram of the middle diaphragm of the present invention.

The reference signs are: the voice coil loudspeaker comprises a sleeve 1, a PCB2, T iron 3, a circular plate 31, a cylindrical part 32, a tone adjusting hole 311, a magnet 4, a washer 5, a voice coil 6, a diaphragm 7, an outer frame 71, an annular convex membrane 72, a concave strip 721, a tympanic membrane 73, a voice coil active area 8, a rubber casing tone adjusting net 9 and traditional T iron 10.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in fig. 2-7:

a loudspeaker comprises a sleeve 1, a PCB2 is fixed at the bottom of the inner side of the sleeve 1, a T iron 3 is fixed at the upper side of a PCB2, a magnet 4 is sleeved at the upper side of the T iron 3, an washer 5 is fixed at the upper side of the magnet 4, a voice coil 6 is arranged between the washer 5 and the T iron 3, a diaphragm 7 is fixed at the upper side of the washer 5, the voice coil 6 is fixed at the lower end of the diaphragm 7, the voice coil 6 is electrically connected with the PCB2, after audio current is introduced into the voice coil 6, the voice coil 6 generates an alternating magnetic field under the action of the current, the magnet 4 also generates a constant magnetic field with unchanged size and direction, the size and direction of the magnetic field generated by the voice coil 6 are continuously changed along with the change of the audio current, so that the voice coil 6 does the motion vertical to the current direction in the voice coil 6 due to the interaction of the two magnetic fields, the voice coil 6 is connected with the diaphragm 7, t iron 3 includes circular plate 31, and fix the cylinder portion 32 in circular plate 31 middle part upper end, be equipped with a sound control hole 311 on circular plate 31, form a voice coil activity district 8 between cylinder portion 32 and the magnet 4, sound control hole 311 is located voice coil activity district 8 below, set up sound control hole 311 on T iron 3's circular plate 31, sound control hole 311 can let the air flow in from the speaker and flow out, the tympanic membrane 73 that atmospheric pressure made on diaphragm 7 appears sunken problem when not only having prevented that the earphone from packing into the ear, can also improve the distortion simultaneously, create better tone quality and heavy bass effect.

The lower end of the circular plate 31 is further fixed with a rubber casing tuning net 9, the rubber casing tuning net 9 is located right below the tuning hole 311, the rubber casing tuning net 9 has a tuning effect, sound can be adjusted more accurately, and tone quality distortion is further reduced.

In order to make the tuning hole 311 have air permeability, the PCB2 is further provided with a receding groove matched with the shape of the rubber casing tuning net 9, so that the PCB2 is prevented from blocking air from entering and exiting.

The diaphragm 7 comprises an outer frame 71 fixedly connected with the washer 5, an annular convex film 72 connected with the front end surface of the outer frame 71, and a tympanic membrane 73 fixed in the middle of the annular convex film 72, and a plurality of concave strips 721 are further arranged on the annular convex film 72 in order to improve the high-low sound effect of the loudspeaker and reduce distortion.

In order to further enhance the high-low sound effect of the speaker and reduce the distortion, all the concave strips 721 are distributed on the annular convex film 72 in a fan-blade shape.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a loudspeaker, includes the speaker, its characterized in that, the speaker includes sleeve (1), sleeve (1) inboard bottom is fixed with PCB (2), PCB (2) upside is fixed with T iron (3), T iron (3) upside cover is equipped with magnet (4), magnet (4) upside is fixed with magnificent department (5), magnificent department (5) with be equipped with voice coil loudspeaker voice coil (6) between T iron (3), magnificent department (5) upside is fixed with diaphragm (7), voice coil loudspeaker voice coil (6) are fixed diaphragm (7) lower extreme, T iron (3) include plectane (31) and fix cylinder portion (32) of plectane (31) middle part upper end, be equipped with one accent hole (311) on plectane (31), cylinder portion (32) with form a voice coil loudspeaker voice coil moving area (8) between magnet (4), the sound adjusting hole (311) is located below the voice coil active area (8).

2. A loudspeaker according to claim 1, wherein a rubber-covered tuning net (9) is further fixed to the lower end of the circular plate (31), and the rubber-covered tuning net (9) is located right below the tuning hole (311).

3. A loudspeaker according to claim 2, wherein the PCB (2) is further provided with a recess matching the shape of the tuning net (9).

4. The loudspeaker according to claim 1, wherein the diaphragm (7) comprises an outer frame (71) fixedly connected with the washer (5), an annular convex film (72) connected to the front end surface of the outer frame (71), and a tympanic membrane (73) fixed to the middle of the annular convex film (72), and a plurality of concave strips (721) are further arranged on the annular convex film (72).

5. A loudspeaker according to claim 4, wherein all of said concave strips (721) are fan-shaped and distributed on said annular convex membrane (72).